Extruder for grease containers



Nov. 9,1926. 1,606,727y

' H. A. SEARLE ExTauvEa FOR GREASE CONTAINERS Filed April 14, 1924 2' sheets-sheet 1 76M cirvenJ-cor my ,/Gz

Nov. 9 ,-1926, 1,606,727

- H. A. SEARLE gxTRuDER Foa GREASE CONTAINERS Fi1ed`Apri1 14. 1924 YStmas-sheet 2 IIIIIlIIIIII/IIII.V/Ill//l/lll/l/A A Lnvervk or Patented Nov. 9, 1926.

PATENT OFFICE.

HARRY SEARLE, F COUNCIL BLUFFS, IOWA.

EXTRUDER FOR GREASE CONTAINERS.

Application filed April 14, 1924. Seriall No. 706,490. I

' The use of grease pressure systems on automoblles is becoming more unlversal every day, t-he magority of new cars belng equipped pressure These grease guns comprise a. grease holding body Within which 1s mod'nted a piston,

- or plunger, which is forced downwardly against the body of grease whereby they grease is expelled from the container gun body through a flexible hose connected at.

the opposite en'ds, said flexible hose being connected to the suitable grease cups and the like on the automobile.

It is extremely difficult to coinpactly fill these grease guns with grease because air is trapped in the gun by the grease which prevents the grease' gun from becoming fully filled with grease. The air cannot escape through the flexible hose because the hose is filled with grease, therefore, the only way in which to get rid of the air in the present gun is to remove the hose which is more or less inconvenient.,

Grease cartridges have been placed on the market which are adapted to be telescoped over the grease gun leaving the contents of the package in the gun providing some means has been devised to getv rid ofthe air in the gun as the grease is being forced therein. A cartridge with an air vent has been devised to get rid'of the air cushion and is a successful device, but naturally the price 'of grease in such cartridges kis necessarily greater than it can be purchased for in bulk.

The object of my invention is to provide 40 a container in which grease can be sold in bulk, as, for instance, in five pound lots, said container having meansv whereby the grease gun can be compactly filled directly from the container, said means providing for the 'escape of air from the grease gun as it is being filled with the grease, thus enabling me to give customers the benefit of bulk prices and also giving them the benefit of the convenience and cleanliness of the grease 0 cartridge.

A further object of my invention is to pack within the container my improved means and seal it in the package by the usual package cover; and with these and other ob ]ects in view, my invention consists of the parts and combination of parts `as .will be4 hereinafter more fully set forth.

In the drawings:

Figure .l is a top plan -view of my improved extruder.

Figure 2 is a vertical sectional view of a grease container showing my invention in operation.

Figurel 3 is a vertical sectional View through my improved extruder detached and assembled with the grease gun.

-Figure 4'is a detail view of the end of the gun removed.

Figure is a transverse sectional View of my extruder.

Figure 6 is a transverse sectional view of another embodiment of my extruder.

The reference numeral l represents a commercial straight side grease container which plunger may be provided With any suitable commer-4 cial cover., y

My improved grease eXtruder consists of a disk 2 having a vertical flange 3 at its perimeter, which flange is slightly inclined outlWardly from the vertical and is designed to have a tight but easy sliding fit with the inner .face of the walls of the container 1 whereby it functions not only to keep the grease from passing up around the perimeter of the eXtruder, but also functions as a Wiper, to wipe the grease clean from the inner face 'of the wall of the container.' This extruder 2 is provided with suitable corrugations 4, which function asbeams to stiifen the extruder disk 2 and prevent it from buckling or bending when in use. ,i

l A central opening is formed through the extruder 2 around which is disposed a vertical liange 5, which flange is spaced from the inner ends .of the corrugations '4. f

The extruder 2 is provided with a port 6, which ort may be formed by depressing the upper ace of the disk 2 in the form of'a corrugation, said corrugation opening on the top of the disk 2. 7 is an air vent tube bending at its lower end as at 8 andextended into the corrugation 6 and o ening to atmospheric air. The air vent i) is designed to be lof such length that it will, when a grease gun is inverted over it, extend substantially t0 the upper end 0f the inverted grease gun 9 whereby any air trapped in the end ofthe grease gun 9 is conveyed by the air tube 7 and branch 8 to atmosphere.

It will, of course, be understood that the on the disk 2 whereby the disk 2 is forced air tube 7 is readily detachable from theoperative position shown in the drawings and may be packed Hat'on top of the extruder disk 2 in the grease container.

As will be seen from Figure 6, I may solder, or otherwise readily iix to the extruder 2, an air vent 10 in the upper end of which Ican telescope an extension tube l1 so that the extension tube 11 may be readily detached from the extruder 2 for the purpose of packing and shipping.

The plunger end 12 of the grease gun having been removed, thev grease gun is inyerted with its open end, as shown in Figures l and 3, telescoped outside of the flange 5 of the disk 2 in which position the air vent tube 7 extends substantially to'the top of the grease gun. Now,in order to ill the grease gun 9 the operator presses upon the upper end of the grease gun which in turn exerts pressure down upon the body of grease in the container 1 and the grease is displaced and readily flows through the center opening of the 2li` disk 2' up into the body ofthe grease gun,

as is illustrated in Figure 2. Continuingthe downward pressure on the gun 9v the air trapped in the gun above the grease escapes through the vent pipe 7 to atmosphere, thus enabling the operator to compactly and eompletely lill the grease gun with grease from the container 1 withoutsoiling his hands and Without loss of any grease. t The extruder disk 2 may be. 4formed in many ways and of various diameters fort-he different sized grease containers.

It will be noted from the drawings that the edge of the open end of the grease gun, when in position to-be filled, rests on the extruder ydisk 2 between the flange 5 and the inner endsof the corrugations.

It is quite obvious that many changes xunay be made in the details of-construction and relative arrangement without ,departing from the scope of the appended claims.

' What I claim is:

1. A grease extruder for use in 'an open can of grease for extruding grease from the can into a grease gun by downward pressure of the extruder ou the grease, said extruder comprising a disc having a central grease extruding opening, an air tube mounted on fsaid disc one'end of which opens on top of the disc while the upper portion of the tube extends upwardly through the said grease openlng in the disc to a point above the disc.4 v

2. A grease extruder comprising' a disc having an upturned fiange on 1ts perlmeter, a

grease extruding 'port through the disc, au

upstanding flange around said port, and an air tube open at one'end on top of the disc, the body portion of the tube extending upwardly through said port inside of said annular liange to a point above the said flange and disc.

In testimony'whereof I ailix my signature.-

HARRY A. SEARLE. 

